Typewriting machine



Feb. 3, 1925. 1,525,252

T. A. RYAN TYPEWRITING MACHINE Filed June 23, 1921 2 Shoots-Sheet 1mlllnllluI INVENTOR. y W

ATTORNEYS.

Feb. 3, 1925.

T. A. RYAN TYPEWRITING MACHINE Filed June 23, 1921 2 Sheets-Sheet 2 E2venic) Y.

Patented Feb. 3, 1925.

THOMAS A. RYAN, OE YONKIERS, NEW YQRK.

TYPEWRITING MACHINE.

Application filed June 23, 1921.

To all whom it may concern:

Be it known that I, THOMAS A. RYAN, a citizen of the United States,residing in the city of Yonkers, county of Westchester, State of NewYork, have invented new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to the elimination of the clicking noise made bythe type striking against the paper, common in most key operatedmachines.

The useful, new, and novel construction of the machine, will be furtherdisclosed in this specification and the accompanying drawings.

Most of the parts are in duplicate, a group of similar-parts beingcombined at each side, but treated in the description as one to simplifymatters, though what parts are in duplicate is readily understood.

Fig. 1 is a front elevation, having a part cut away to show the shiftkeys at the left end. the right side group of printing key levers beingshown assembled to a point beyond the key rod from which point thelevers are angled to form the key-board. This part of the lever is shownonly with half a dozen keys. A similar group of key-levers would beassembled on the other side, but are not shown on the drawings. Thespacing-bar is shown in three sections broken away at the ends andcenter. The balance of the operating parts are shown in plan view inthis figure. Fig. 2 is a side elevation of the machine, and operatingparts. Fig. 3

is a cross-section on the line A through the type, drum, and projectinglever. Fig. 4 is a plan view of the.drum crank-shaft, the connectinglevers, slidable stops, support-rod and actuating springs. Fig. 5 is afront elevation of a spring actuated U-shaped bar,

and the normal holding bar. Fig. 6 is a side elevation of same with aprinting key lever. Fig. 7 is a front elevation of the connecting endsof the key holding bars and the co-acting upright lever. Fig. 8, is aside elevation of the supporting standard. Fig. 9, is a view of asection of the frame end that supports the carriage rollers. Fig. 10 isa side view of the bell ringing mechanism.

The machine frame has formed in each upper side V-shaped recesses 2, ineach side Serial No. 479,977.

but is not shown on the drawing. riage 4, has its ends 5 formed tocorrespond to the V-shaped frame. The carriage ends are connected byparallel rods 6 forming a supporting track forthe platen 7 which issupported on a shaft 8 revolving in the carriage ends. A rack 9 setparallel with the track has spaced teeth engaged by the spring 10actuating the escapement lever 10, which is pivoted to a member 11having its ends formed to slidably engage a supporting standard 17, andhas a rod 12 set on its face to which is movably secured one end of alever 13, the other end of which is pivoted to the lugs 14of theoperating plunger 15 which is set slidably on a supporting rod 16projecting from a supporting standard 17 and is encased in a spiralspring 18. The operating plunger is held to position by its end 15sliding between the uprights 19 and 19 of the projecting lever 19 whichhas pivoted near the top an arm 20 having a T-shaped head 20 whichstands in a T-shaped recess 21 extending around the drum when the typeare assembled and formed by the recess 22 cut in each type 22. The typedrum 23 has spaced. guide lugs 23 extending around its outer edge, whichare engaged by the guide end 19 To the drum supporting standards 24 and25 the crank-shaft 26 is journaled. And to each offset of thecrank-shaft is ournaled an end of a lever 27 and to the other end ofeach lever is pivoted a slidable stop 28, mounted on a rod 29, andactuated by a spring 30. A rocking member 31 is pivoted at 19 to thelever 19, and has opposite arms 31 which operatively bear against thecrank-shaft, and arms 31 having slots 31 which are slightly connected tothe ends of a co-operating keybar 32 which co-ope-rates -with the keylevers and has arms which are pivoted to the key lever pivot 33. The keylevers 34 are assembled in duplicate groups on either A car side inclose formation to beyond the key rod, then they are angled to form thekey board. Each key lever is formed and spaced in agroup so that thecharacter designated on the key'struck is in the printing range when thekey head 34 intercepts the drum stop 28.

Each key lever is formed adjacent to the key-rod 32 and supporting rod29 into a T head 34 which forms when the key levers are assembledlongitudinal recesses 35 and 36. The slidable drum stop 28 travels.ports'the-slide member 1].

=mounted on the carria .bar 37 having its ends pivoted to the frame,

and resting against the key-bar arm 32 adapted to hold the bar 37 fromtlie'recess Sduntil =a-key is struck c rrying the universal-bar 32 andthe arm 32 away from the Lt-ibar when it is drawn into'thorecess 36bylthe springs-Bdand 39. -When the supporting universal-bar 32 movesdown away from under the key. levers, bar 37 supports all ;but thestruck key.

When the key is released a reverse action of the arm forces the bar 37from the recess 36 so the nextkey-is free ,when' struck. When cachtypeprints more than one character,

' the typeisraisedzand lowered to the printing range by supporting theparts on a: mov able base 40, having .angled ends 41, to which aresecured-pins 4-2, thatare slidable inithe frame holes 43, of the framebase A4, and are cushioned by the Washer The-movable base is operated bythe shift keys 49 and 50 having levers 51 that extend back beyond thepivot and are angled to the'center oit the-portahle'base. Therange 57:

of the type and keys is limited by the regulating-slots in which thekeysslide, and may be locked to maintain the desired characters in theJrin-tinr ran e b turnin the o c p locking-levers 52 and 53 which arepivoted to=the frame above regulating slots cut to depth equal to theWidth-of the part of ;the key-lever engaging the slots, so that vrhenthe locking levers are-turned across the-slots the movable base islocked in its raisedposition holding the desired type in the printingrange. The-standard 4:6 sup- A striker 47 is pivoted to the frame andhas onoend operatively resting against the plunger 15,

swinging the striker-When a key is struck and striking an adjustablealarm bell 48 A. spacing-bar 54 having spacedsupporting arms fibprojectingback is alined with-the key levers and is-journaled,on'the rod33 and a center arm 56 operatively engaging the plunger '15 andtheescapeinent pawl 10 controls the movement of the carriage.

The machine operates as follo vs. When a key 3415 struck it produces asimultaneous action of thekey-b r 32, therocking member 81, crank-shaft26, drum 23, lever 27and the stop 28,'Wl110l1 rotates-thedrum 3 untilthestop sliding on the bar 29 compresses the spring 30 and is interceptedby the key-lever stop 84: which is drawn into the recess 35. The typeprinting the character designated on the key is held in theprintingrange as the power in the struck key is transferred to theprojecting lever 19, producing a simultaneous action of the lever19,,plunger 15, lever 13, slide men'iber 11, and the escapement lever10. This action forces the projecting lever 19 forward, setting theguide end19 between tWO of the guide lugs'23 holding the drum 23 inposition as the arm 20 projects a type 22 printing the character on thepaper held on the platen 7, forces back the plunger 15 sliding onthe rod16, projecting from the standard 17, and stores the energy in spring 18.The lever 13- of the plunger 15 imparts a: lateral movement to theslidable member 11 which sets the escapement lever 10 in an advancedtooth in the rack 9. When-the struck key 34 is released the storedenergy: in the springs 18 and SO autoi'i'iatically returns all partstonor-mal posi tion, and advances the carriage one letter space. Whenthecarriage reaches the end of a line, it isfree to return when the spacingbar is held.

llaving thus described my inventionwhat I claim as new is:

1. Thecombination in a-typewriting machine, of a movable-carriage, aplaten, a toothed rack, said rack operatively engaged by an escapementpawl pivo'tedto a slidably mounted reciprocatingmember, said memberhinged to a spring actuated plunger, said plunger actuated by auniversal-bar and printing i keys.

2. The combination in a typewriting machine,-of type operativelyassembled in a rotatable drum, said drum mounted on a crank-shaft, saidcrankshaft operatively connected to opposed springact-uated gages, saidgages slidably mounted to have their travel-intercepted when a key isstruck in a range of keys, with means to print the character designatedon the struck key.

3. The combination in a typeivriting machine, of type, said type carriedinarotatably mounted drum, said drum mounted on a crank-shaft, opposedspring actuated slidably mounted gages, an oscillator, said oscillatorhaving opposed upright arms operatively engaging said crank-shaft, andhaving opposed arms operatively formed into a universal bar, saiduniversal bar actuated 'by printing keys, with means to print thecharacter designated ona "key.

4. The combination :in-a typewriting machine of type, said type havingmeans to be successively operatively engaged When assembled in arotatable drum, said: drum mounted on a crankshaft and "havingspaced'projecting lugs on its periphery, and

key controlled gages, an oscillator, said oscillator mounted on anupright hinged lever, said lever having means to operatively engage saidtype and said drum, a universal bar, printing keys, with means tosuccessively bring within the printing range, project, and print, andreturn to said drum the type designated on a key.

5. The combination in a typewriting machine, of type, a rotatable drumadapted to carry said type, a crank-shaft adapted to rotate said drum,an oscillator adapted to operate said crank-shaft, gages adapted tocontrol said drum, a lever adapted to engage said type, a universal bar,and printing keys, with means to print the character designated on astruck key.

6. The combination in a typewriting machine, of printing-keys havinglevers formed into opposed recesses, said recesses forming longitudinalrecesses when said keys are assembled, spring actuated gages slidablymounted to travel in said recess until operatively engaged by a key tocontrol the rotation of a drum, a spring actuated holding bar, saidholding bar adapted to engage said recess when a key is struck to holdsaid keys aligned, with means to print the character designated on astruck key.

7. In a key machine having a platen, the combination of a rotatabledrum, type formed to successively operatively engage a co-operative formon a member adapted to project and return said type to said drum, withmeans to print the type designated on a struck key.

8. In a type-Writer having a movable carriage, the combination of arotatable drum adapted to carry type and mounted on a crank-shaft, amember adapted to project and return said type, an oscillator combinedwith a universal bar and printing keys,'said parts supported on amovable base mounted on a machine frame, with shift-keys having lockingmeans, and adapted to set various characters on said type in theprinting range.

9. In a type-writing machine having a movable carriage and an adjustablealarm bell, combined with a rotatable drum mounted on a crank-shaft andcarrying type, means operable by printing-keys to print said type, andoperate a striker adapted to strike said bell when it comes Withinrange, with a spacing-bar adapted to move said carriage in letterspacing direc- 1 tion.

Signed in the city of Yonkers, in the county of Westchester and State ofNew York this 20th day of June, 1921, before two subscribing witnesses.

THOMAS A. RYAN. lVitnesses FRANK P. MACK, GEORGE S. BRODERICK.

